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Drug Reference

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Darunavir Oral tablet

Additional titles for this drug

Prezista 150mg Tablet, Prezista 300mg Tablet, Prezista 400mg Tablet, Prezista 600mg Tablet, Prezista 75mg Tablet

What is this medicine?

DARUNAVIR (da ROON a veer) is an antiretroviral medicine. It is used with other medicines to treat HIV. This medicine is not a cure for HIV. It will not stop the spread of HIV to others.

How should I use this medicine?

Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Take this medicine with food. Take your medicine at regular intervals. Do not take your medicine more often than directed. For your anti-HIV therapy to work as well as possible, take each dose exactly as prescribed. Do not skip doses or stop your medicine even if you feel better. Skipping doses may make the HIV virus resistant to this medicine and other medicines. Do not stop taking except on your doctor's advice.

Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for children as young as 6 years for selected conditions, precautions do apply.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:

  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue

  • dark urine

  • loss of appetite

  • pain in the lower back or side

  • pain when urinating

  • pain, tingling, numbness in the hands or feet

  • redness, blistering, peeling or loosening of the skin, including inside the mouth

  • right upper belly pain

  • trouble passing urine or change in the amount of urine

  • unusually weak or tired

  • yellowing of the eyes or skin

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • diarrhea

  • headache

  • increased hunger or thirst

  • sore throat

  • weight gain around waist, back, or thinning of face, arms, legs

What may interact with this medicine?

Do not take this medicine with any of the following medications:

  • alfuzosin

  • cisapride

  • ethotoin

  • fosphenytoin

  • lovastatin

  • medicines for headaches like dihydroergotamine, ergonovine, ergotamine, methylergonovine

  • midazolam

  • phenobarbital

  • phenytoin

  • pimozide

  • red yeast rice

  • rifampin

  • simvastatin

  • St. John's wort

  • triazolam

This medicine may also interact with the following medications:

  • birth control pills or patch

  • buprenorphine or buprenorphine; naloxone

  • carbamazepine

  • cyclosporine

  • dexamethasone

  • fluticasone

  • itraconazole

  • ketoconazole

  • rifabutin

  • medicines for blood pressure, heart disease, irregular heart beat

  • medicines for cholesterol like atorvastatin, pravastatin, rosuvastatin

  • medicines for depression, anxiety, or psychotic disturbances

  • medicines for erectile dysfunction

  • methadone

  • other medicines for HIV

  • paroxetine

  • sertraline

  • sirolimus

  • tacrolimus

  • voriconazole

  • warfarin

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

Where should I keep my medicine?

Keep out of the reach of children.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • diabetes

  • hemophilia

  • liver disease

  • an unusual or allergic reaction to darunavir, sulfa medicines, other medicines, foods, dyes, or preservatives

  • pregnant or trying to get pregnant

  • breast-feeding

What should I watch for while using this medicine?

Visit your doctor or health care professional for regular check ups. Discuss any new symptoms with your doctor. You will need to have important blood work done while on this medicine.

HIV is spread to others through sexual or blood contact. Talk to your doctor about how to stop the spread of HIV.

Birth control pills may not work properly while you are taking this medicine. Talk to your doctor about using an extra method of birth control. Women who can still have children must use a reliable form of barrier contraception, like a condom or diaphragm.

This medicine may affect blood sugar levels. If you have diabetes, check with your doctor or health care professional before you change your diet or the dose of your diabetic medicine.

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